机械加工是指通过一种机械设备对工件的外形尺寸或性能进行改变的过程。按加工方式上的差别可分为切削加工和压力加工。

生产类型通常分为三类：

1．单件生产：单个地生产不同结构和不同尺寸的产品，并且很少重复。

2．批量生产：一年中分批地制造相同的产品，制造过程有一定的重复性。

批量生产的零件

批量生产的零件

3．大批量生产：产品的制造数量很大，大多数工作地点经常是重复进行某一个零件的某一道工序的加工。

Machining refers to the process of changing the shape size or performance of the workpiece through a mechanical device. According to the difference in processing methods, it can be divided into cutting and pressure processing.
Production types are usually divided into three categories:
1. Single-piece production: individual production of products of different structures and sizes, and rarely repeated.
2. Mass production: The same products are manufactured in batches throughout the year and the manufacturing process is somewhat repetitive.
Mass-Produced parts
Mass-Produced parts
3. Mass production: The product is manufactured in large quantities and most duty stations often repeat the processing of a particular part.